Jim Shooter and an unparalleled team of avenging artists - George Pérez, John Byrne, Jim Starlin and more - bring you Earth's Mightiest Heroes at their best! This Marvel Masterworks volume is packed from cover to cover with classic encounters staged on a truly massive scale: Jim Starlin's defining "Thanos War," Ultron's revenge, the cosmic "Korvac Saga" - it's a dizzying array of iconic adventures! Luckily, the Avengers aren't alone as they face these challenges - they're joined by the Guardians of the Galaxy; the Amazing Spider-Man; and the ever-lovin', blue-eyed Thing! Also featuring Adam Warlock, Gamora, the Collector, the Lethal Legion, Count Nefaria, a new look for Wonder Man, and the unfolding secret origins of Quicksilver and Scarlet Witch! Collecting AVENGERS (1963) #164-177 and ANNUAL #7, and MARVEL TWO-IN-ONE ANNUAL #2.